Diazonium-based ion-imprinted polymer/clay nanocomposite for the selective extraction of lead (II) ions in aqueous media

On the key role of the surface of palygorskite nanofibers in the stabilization of hexagonal metastable β-Ag2CO3 phase in palygorskite-based nanocomposites

“…In such hetero structures, several kinds of organic (Rahman et al, 2017;Tominaga et al, 2016), bio-organic (Darder et al, 2017;Ilsouk et al, 2017;Roque-Ruiz et al, 2016) and inorganic (Lakbita et al, 2016;Praneetb and Paria, 2017) guest species can be assembled, according to different synthesis approaches based eitber on intercalation by ion exchange (Roy et al, 2017) or grafting to SiOH groups, with host phyllosilicates (Aït . These combinations can act in a synergistic way giving rise to multifunctional materials witb optimum structural and texturai properties which can be destined to various versatile and innovative applications as heterogeneous catalysts in petroleum cracking (Emam et al, 2008), photocatalysts in environmental protec tion (Bouna et al, 2011;Lakbita et al, 2016;Pérez-Carvajal et al, 2016), molecular sieves (Liu and Wang, 2017), selective adsorbents (Boudriche et al, 2015;Msaadi et al, 2017), thermal insulators (Darder et al, 2017;Jahani et al, 2015;Laufer et al, 2012), electrochemical, electroanalytical and optical devices (Mudrinié et al, 2015;Tominaga et al, 2016;Kenne Dedzo et al, 2017) and inhibition systems in me tallic corrosion (Aït Aghzzaf et al, 2012;Aït Aghzzaf et al, 2014;Aït Aghzzaf et al, 2017).…”

Highly Selective Copper Ion Imprinted Clay/Polymer Nanocomposites Designed by Visible Light Radical Photopolymerization

“…Heating at 60 °C was achieved in order to obtain stable aluminosilicate-aryl bond by dediazonation of the interfacial diazoether [32]. For the photopolymerization step, we have deliberately selected CQ as the photosensitizer for two reasons.…”

“…ion imprinted polymers [27,28,29,30,31]. We have previously demonstrated that such materials can be designed by UV-triggered radical photopolymerization of functional and crosslinker in the presence of organo-clay [32]. In a unique approach, we have efficiently organo-modified clay using the versatile aryl diazonium instead of ammonium salts or silane coupling agents bearing photoinitiator.…”

Preparation, Characterization, and Application of Polyacrylamide‐Polystyrene/Bentonite Nanocomposite as an Effective Immobilizing Adsorbent for Remediation of Soil

“…The most important and damaging contaminants are heavy metal elements in water and soil . These elements include lead, cadmium, chromium, nickel, manganese, copper etc., which can result in toxicity for food products and eventually damage to human organs and plants . Thus, methods capable of removing these contaminants from water and soil are of great interest to scientists, for which extensive research has been conducted.…”